What advantages might there be in living near other people in small towns, such as those in New England?

If A is an

$$n \times n$$

matrix, show that det A=0 if and only if some column of A is a linear combination of the other columns.

What might scientists conclude about an organism that has different characteristics than other organisms?

Explain how the gene for chymosin was isolated and how the technique could be applied to isolating other genes:

Choose the word that is not related in meaning to the other words.

(a) serene, (b) tranquil, (c) unhappy, (d) placid

What is meant by the term ecological niche? Describe the ecological niche of humans and of three other species.

Let

$$u \text{ and }v$$

be distinct vectors in a vector space V. Show that

$$\{u, v\}$$

is linearly dependent if and only if u or v is a multiple of the other.

Besides the man in the water, who are the three other heroes, and what does each one do?

Are regions that are dry throughout the year dominated by high or low pressure?

In B, what other ratio based on the table could you use? What would your proportion be?

What plants and algae can be found in the polar ice regions?_____________________________________________

Even on the same freeway, the traffic is sometimes congested and other times very light. Explain why.

If 1 - 2i is a zero of $P(x)=x^{4}+11 x^{2}-10 x+50,$ find all the other zeros.

In what ways do the poems "Dump" and "How Things Work" most resemble each other?